Army Variant of K-4 on Cards, Submarine test deferred

[Capt.Popeye]

Yes but we need LV of K 4 too.

Such version can replace Agni 2..........

A1 and A2 are due to be replaced first in that series.

 

[HRK]

Looking at the height the missile jumps out of water, it has to be far lighter than trident. Trident does not go that high.

Looking at the height the missile jumps out of water, it has to be far lighter than trident. Trident does not go that high.

Yap .... off course .... there is noway one can count K-4 & Trident in the same league ... what I was trying is to do is to keep myself limited to the launch mechanism (as per your query in post 3 of this thread) & to highlight the visible difference b/w the two launch mechanism .... one a conventional method other Supercavitation based (which I believe is better then the conventional method)

Read this extract for Conventional Submerged Cold Launch ....

Similar problems exists with respect to existing submerged missile launch methods, wherein the missile is ejected "cold" from the launch tube, i.e., without its rocket motor providing any real thrust and, until the missile rises vertically through the water, exits the surface and fully ignites its rocket engine, the missile is simply a projectile. In a conventional cold launch, the ejection is typically performed by injecting high-pressure gas into the launch tube by means of a gas generator device, under the missile base, urging the missile upward in a piston fashion via expanding gases. The launch depth is limited, though, because the missile must be ejected with enough force to overcome the hydrodynamic resistance of the water and the missile weight, and to exit the water. Since all of the ejection force is applied in the launch tube, structural limits constrain the maximum launch depth. Another shortcoming is potential water seepage into the missile due, at least in part, to the extreme force at which water contacts the surface of the missile.

@The Deterrent .... might help you further ... in this regard ....

 

[IND151]

A1 and A2 are due to be replaced first in that series.

I believe K 16 will replace A 1 and K 4 will replace A 2..........

 

[The Deterrent]

@The Deterrent .... might help you further ... in this regard ....

You have covered it quite well

 

[kṣamā]

One more thing to notice is K4 has side firing supercavitation motors as supposed to top firing ones. This an advantage and a disadvantage both. Side firing mechanism produces additional lifting capacity but poor cavitation support for the missile nose which will have to dig some water. This in turn means technically K4 can be launched from greater depths than being tested but will have lower velocity when it clears through the transition. This can be risky bet, but can be used in areas with high ASW assets.

What do you say @Chanakya's_Chant @HRK @The Deterrent @PARIKRAMA

 

[HariPrasad]

K 4 will be a game changer truly.

K 4 LV may replace Agni 2 eventually.

K4 is a shaped trajectory missile having a cruise like trajectory in its terminal phase with a hyper-sonic speed. It is almost impossible to intercept it. It carries 2 ton weight. It just weighs 17 tons and it is very short (Since it is planned to be launched vertically from arihant).

One more thing to notice is K4 has side firing supercavitation motors as supposed to top firing ones. This an advantage and a disadvantage both. Side firing mechanism produces additional lifting capacity but poor cavitation support for the missile nose which will have to dig some water. This in turn means technically K4 can be launched from greater depths than being tested but will have lower velocity when it clears through the transition. This can be risky bet, but can be used in areas with high ASW assets.

What do you say @Chanakya's_Chant @HRK @The Deterrent @PARIKRAMA

I think we witnessed this in that short video of DRDO documentary. Here it differs from K15 i think.

 

[PARIKRAMA]

Can somebody put the snaps comparing K4 launch vs K15. Perhaps that also can show the side firing mechanism or some changes. After all K4 is an advancement of K15 tech, so we may understand more about K4 that way.
Truly Trident II is much advanced but its astonishing that slowly but steadily India is also becoming awesome in sub launched arsenals.. We just need the pontoons replaced by actual subs now.. rest things more or less is almost ready...

 

[HariPrasad]

Can somebody put the snaps comparing K4 launch vs K15. Perhaps that also can show the side firing mechanism or some changes. After all K4 is an advancement of K15 tech, so we may understand more about K4 that way.
Truly Trident II is much advanced but its astonishing that slowly but steadily India is also becoming awesome in sub launched arsenals.. We just need the pontoons replaced by actual subs now.. rest things more or less is almost ready...

K4 is a shaped trajectory missile and hence much ahead of Ballistic missile. K4 emerges from sea very slowly while K15 ejects like a bullet.